Documentation - ready-to-read documentation in as flat directory structure as possible or with index.html in it

Sources (see [1])

GNUstep-core.tar.gz

GNUstep-development_apps.tar.gz (dev-apps)

GNUstep-frameworks.tar.gz (dev-libs)

GNUstep-apps.tar.gz (official gnustep apps sources)

GNUstep-extra-apps.tar.gz (unofficial gnustep apps sources)

Other

this folder should contain various gnustep apps, one app/framework per package, can also include split/partial packages (like gnustep-base, Gorm, ...)

Installers [2]

GNUstep-windows-install.exe

GNUstep-linux.tar.gz

[1] Source packages should be exclusive - no module/app/framework in more than one package - to prevent confusion. They should be more kind of large packages.
[2] fully graphical environments with development tools and some gnustep apps. more skilled know how to install -base or -make separately.